Surgical sternotomy band tightening instrument



FIG. 1 is top plan view of a surgical sternotomy band tightening instrument showing our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a front end elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a rear end elevational view thereof; and

FIG. 6 is a bottom plan view thereof. 

The ornamental design of a surgical sternotomy band tightening instrument, as shown and described. 